Currently some blktest test cases fail to execute correctly.
This series of patches allows these test cases to pass and implements
some other related changes.
The first patch is a repeat of an earlier patch after rebasing to
for-next version 5.14.0-rc6+. It adds memory barriers to kernel
to kernel queues. The logic for this is the same as an earlier patch
that only treated user to kernel queues. Without this patch kernel to
kernel queues are expected to intermittently fail at low frequency.
The second patch is also a repeat after rebasing to for-next version
5.14.0-rc6+. It fixes a multicast bug.
The third patch separates the keys in rxe_mr and ib_mr. This allows the
sequence
do {
ib_post_send( IB_WR_LOCAL_INV )
ib_update_fast_reg_key()
ib_map_mr_sg()
ib_post_send( IB_WR_REG_MR )
} while ( !done )
to operate correctly since now the changes to the local copy of the keys
only happens at the final post_send. The same fix is applied to MWs
since they need to synchronize with IB_WR_BIND_MW work requests.
The fourth patch creates duplicate mapping tables for fast MRs. This
prevents rkeys referencing fast MRs from accessing data from an updated
map after the call to ib_map_mr_sg() call by keeping the new and old
mappings separate.
The final patch cleans up the state and type enums used by MRs.
Bob Pearson (5):
RDMA/rxe: Add memory barriers to kernel queues
RDMA/rxe: Fix memory allocation while locked
RDMA/rxe: Separate HW and SW l/rkeys
RDMA/rxe: Create duplicate mapping tables for FMRs
RDMA/rxe: Cleanup MR status and type enums
drivers/infiniband/sw/rxe/rxe_comp.c | 10 +-
drivers/infiniband/sw/rxe/rxe_cq.c | 25 +--
drivers/infiniband/sw/rxe/rxe_loc.h | 2 +
drivers/infiniband/sw/rxe/rxe_mcast.c | 2 +-
drivers/infiniband/sw/rxe/rxe_mr.c | 269 +++++++++++++++++++-------
drivers/infiniband/sw/rxe/rxe_mw.c | 36 ++--
drivers/infiniband/sw/rxe/rxe_qp.c | 10 +-
drivers/infiniband/sw/rxe/rxe_queue.h | 73 ++-----
drivers/infiniband/sw/rxe/rxe_req.c | 35 +---
drivers/infiniband/sw/rxe/rxe_resp.c | 38 +---
drivers/infiniband/sw/rxe/rxe_srq.c | 2 +-
drivers/infiniband/sw/rxe/rxe_verbs.c | 92 +++------
drivers/infiniband/sw/rxe/rxe_verbs.h | 48 ++---
13 files changed, 307 insertions(+), 335 deletions(-)
--
2.30.2
